She plans to organise a protest march to Parliament to push for bullying to be illegal.

"I want to change the law with the help of people out there," she said.

Image copyrightAmanda StewartImage caption
Dylan's family published pictures of his last days in hospital in an attempt to show the horrors of bullying

She believes if the law had been different, Dylan would have received more support and "would still be here now".

Mrs Stewart said Dylan's problems started after he joined Lakeside Academy, in Stirchley, in January.

The family had moved from Knighton, Powys, where the four sons were home-schooled.

She said Dylan asked to go to school when they moved to Telford.

Image caption
Amanda Stewart wants to organise a protest march to Parliament to demand a review of bullying law

Mrs Stewart said he was attacked while waiting for a school bus.

Police found no evidence of bullying, Coroner John Ellery heard, but Mrs Stewart believes Dylan hid much of it because she had just suffered a stroke and cardiac arrest.

Weeks after the assault Dylan was found unconscious in his bedroom, on 22 April, and died at Birmingham Children's Hospital eight days later.

An inquest in August delivered a narrative verdict saying it was not clear whether Dylan had intended to kill himself or what led him to do it. It also heard the school had not received a formal complaint.

Barbara Williams, Lakeside Academy's chair of governors, said the school was "very saddened" by Dylan's death and she was "confident that everything that could have been done by the school to support him was done".

"Incidents at Lakeside are dealt with very rapidly. The school is regularly praised by Ofsted for its standards of behaviour management," she added.